I found this great post on Ironman humor in one of the Ironman forum. My favourite one is,
‘Your spouse must memorize all of your splits (swim, bike and run). You must also include both transition splits as well. Instead of wearing a shirt which states, “I am with Dummy”, your spouse will wear a shirt which says, “I am with a stud Ironman”. All conversations must be steered to your Ironman race’.
Have a look. Maybe it won’t be so funny if you’re not on the journey (so to speak) but i had a great laughhhh..